Doing some local website work to learn Wordpress theme development.
Tried to set up Wordpress through the prompts, also tried it by manually entering information in the wp-config.php file, neither would work. Still cannot connect to the database, the setup-config.php page returns "Error establishing a database connection". I've double, triple, and quadruple checked the login credentials (database name, username, password etc.), they are complete and correct. Deleted wp-config.php and tried again through the web page, same result.
MySQL is definitely running, the Mac System Preferences panel says so, and I can login and run SQL queries at the command line, although I have to do that as root. Should I be running MySQL as root?
This problem exists with Wordpress and also with an instance of phpMyAdmin that I've also installed, so I don't think it's anything to do with the PHP code as such, it smells more like a permissions thing. For what it's worth, I've edited my httpd.conf file to get Wordpress on port 80 and phpMyAdmin on 8081. Apache is serving those sites up as it should and PHP is running, it's just getting either site to connect to the database that's the problem.
System information:
Mac OS X 10.9.5 (Mavericks)
PHP Version 5.4.30
MySQL version:
mysql Ver 14.12 Distrib 5.0.45, for apple-darwin9.2.0 (i686) using EditLine wrapper
In my case it was as simple as changing the DB_HOST so it was using the correct host and port in wp-config.php:
define('DB_HOST', '127.0.01:3306');
I found the solution on this stackoverflow page.
By default, Apache cannot send requests to a remote MySQL server. It should be enabled.
On CentOS 6 the solution is the command:
setsebool httpd_can_network_connect=1
Check your phpinfo(); to see if MySQL extension for php is installed.
I experienced a similar issue and it turned out that the authentication type used by MYSQL was not supported.
To verify this, add
define('WP_DEBUG', true)
in the wp-config.php and re-run the installation. You will see an entry indicating if that's the case.
If the issue is confirmed to the authentication method, try
mysql> CREATE USER ‘username’#‘localhost’ IDENTIFIED WITH mysql_native_password BY ‘password’;
after logging in to mysql console.
Related
I just installed mysql on mac from Homebrew
brew install mysql
mysql -V
mysql Ver 8.0.11 for osx10.13 on x86_64 (Homebrew)
from terminal it works and I can login to mysql but from Sequel Pro it says
Unable to connect to host 127.0.0.1, or the request timed out.
Be sure that the address is correct and that you have the necessary
privileges, or try increasing the connection timeout (currently 10
seconds).
MySQL said: Authentication plugin 'caching_sha2_password' cannot be
loaded: dlopen(/usr/local/lib/plugin/caching_sha2_password.so, 2):
image not found
can't figure out what I am missing
This is because Sequel Pro is not ready yet for a new kind of user login, as the error states: there is no driver.
mysql + homebrew
Basically you will have to perform some actions manually, however- your database data won't be deleted like in solution below
Go to my.cnf file and in section [mysqld] add line:
default-authentication-plugin=mysql_native_password
Login to mysql server from terminal: run mysql -u root -p, then inside shell execute this command (replacing [password] with your actual password):
ALTER USER 'root'#'localhost' IDENTIFIED WITH mysql_native_password BY '[password]';
exit from mysql shell with exit and run brew services restart mysql.
Should work.
Quick fix (destructive method)
Quick fix for non-homebrew installs:
Apple Logo > System Preferences > MySQL > Initialize Database, then type your new password and select 'Use legacy password'
After restart you should be able to connect. Do it only on fresh installs, because you may lost your db tables otherwise.
my.cnf
The my.cnf file is located in /etc/my.cnf on Unix/Linux
Alternatives
For those who is still struggling with Sequel Pro problems: Sequel Pro was a great product, but with tons of unresolved issues and last release being dated to 2016 perhaps it's a good idea to look for some alternatives. There is a fork of SequelPro called SequelAce that seems to be pretty stable and up-to-date, it keeps similar functionality, similar look and feel, yet at the same time it is devoid of old Sequel Pro problems
TL;DR: Sequel Pro is dead since 2016. Don't downgrade your DB because of a tool. Move on to an alternative tool.
Update 2020: Sequel Pro is officially dead but unofficially alive! You can find the "nightly" builds that don't have this issue (i.e. support Mysql 8 auth) in here: https://sequelpro.com/test-builds
Update 2021: Sequel Ace is a good similar alive alternative: https://github.com/Sequel-Ace/Sequel-Ace#installation (Credits to Maciej Kwas's answer)
All the other solutions here are recommending changing your DB settings (making it less secure, as advertised by MySQL) for the tool you are using. That's not acceptable to me.
I have always been a huge fan of Sequel Pro, even donated to it. But, with all my passion and love, I am sorry if the tool doesn't have any release since 2016. YOLO, and I need to move on!
The alternative I found (from https://stackoverflow.com/a/55235533/2321594, thanks to #arcseldon) is DBeaver which supports MySQL 8's new authentication (non-legacy) method.
PS. The only trick in the tool side, not the DB side is when you are creating a MySQL 8 connection you might need to go to "Driver Properties" (later can be found in Edit Connection) and turn the value of allowPublicKeyRetrieval to true.
I needed this to connect to my MySQL container created using Docker. To have the IP of MySQL be visible to the outside, for any other application in your ecosystem (not just this tool), you should either create a new user in MySQL, or pass -e MYSQL_ROOT_HOST=% in the run-time or as an ENV.
Assuming you don't have a mysql configuration, echo the following to ~/.my.conf
[mysqld]
default-authentication-plugin=mysql_native_password
Sign into mysql with mysql -u root -p
Set the root user password with ALTER USER 'root'#'localhost' IDENTIFIED WITH mysql_native_password BY '[PASSWORD]'; where [PASSWORD] is a password of your choosing.
Restart mysql with e.g. brew services restart mysql
Sequel Pro is officially dead and no longer supports newer MySql features. However, the good news is that it was replaced by Sequel Ace which is available on GitHub and App store. The app is free of charge and looks like official replacement for Sequel Pro as the post was made by one of the collaborators of Sequel Pro.
Ps. I decided to post this as an answer as others have not mentioned that there is now an up-to-date replacement for Sequel Pro
If you connect to MySQL via root#127.0.0.1, make sure that you reset its password too!
ALTER USER 'root'#'127.0.0.1' IDENTIFIED WITH mysql_native_password BY '[password]';
It's working for me. if you are getting this error :
Unable to connect to host 127.0.0.1, or the request timed out.
Be sure that the address is correct and that you have the necessary
privileges, or try increasing the connection timeout (currently 10
seconds).
MySQL said: Authentication plugin 'caching_sha2_password' cannot be
loaded: dlopen(/usr/local/lib/plugin/caching_sha2_password.so, 2):
Plz try this solution
If anyone facing this issue and installed MySQL version > 8 through .dmg file; downloaded it from the official link. In that case please use this guideline. I am adding the same details below in case the link will not be available in the future.
This issue is because you're using the new Strong Password Encryption which is a new feature in MySQL 8, if you installed MySQL 8 using the .dmg file, you can go to System Preferences > MySQL and then click on Initialize Database type your password and select the second option Use Legacy Password Encryption.
I installed XAMPP v3.2.1 because I wanted to learn how to create database in MySQL and learn more about TOMCAT. However, I am a little confused about what to do now. I have read many blogs and the documentation on this page http://dev.mysql.com/doc/refman/5.0/en/creating-database.html.
While following the directions I found that:
I can't access my local host.
Attempted Solution: I shut down skype because I read that might be an issue.
I don't have any older versions of XAMPP on my computer and I don't believe I am connected to any other servers. So, I don't have permission to do anything.
OR
Am I trying to access mysql through the wrong command prompt? I am trying to use MySQL from the XAMPP shell. I am not sure why I cannot get everything working. Am I going about this the wrong way?
Thanks for any help
XAMPP only offers MySQL (Database Server) & Apache (Webserver) in one setup and you can manage them with the xampp starter.
After the successful installation navigate to your xampp folder and execute the xampp-control.exe
Press the start Button at the mysql row.
Now you've successfully started mysql. Now there are 2 different ways to administrate your mysql server and its databases.
But at first you have to set/change the MySQL Root password. Start the Apache server and type localhost or 127.0.0.1 in your browser's address bar. If you haven't deleted anything from the htdocs folder the xampp status page appears. Navigate to security settings and change your mysql root password.
Now, you can browse to your phpmyadmin under http://localhost/phpmyadmin or download a windows mysql client for example navicat lite or mysql workbench. Install it and log in to your mysql server with your new root password.
XAMPP Apache + MariaDB + PHP + Perl (X -any OS)
After successful installation execute xampp-control.exe in XAMPP folder
Start Apache and MySQL
Open browser and in url type localhost or 127.0.0.1
then you are welcomed with dashboard
By default your port is listing with 80.If you want you can change it to your desired port number in httpd.conf file.(If port 80 is already using with other app then you have to change it).
For example you changed port number 80 to 8090 then you can run as 'localhost:8090' or '127.0.0.1:8090'
Changing XAMPP Default Port:
If you want to get XAMPP up and running, you should consider changing the port from the default 80 to say 7777.
In the XAMPP Control Panel, click on the Apache – Config button which is located next to the ‘Logs’ button.
Select ‘Apache (httpd.conf)’ from the drop down. (Notepad should open)
Do Ctrl+F to find ’80’ and change line Listen 80 to Listen 7777
Find again and change line ServerName localhost:80 to
ServerName localhost:7777
Save and re-start Apache. It should be running by now.
The only demerit to this technique is, you have to explicitly include the port number in the localhost url. Rather than http://localhost it becomes http://localhost:7777.
<?php
if(!#mysql_connect('127.0.0.1', 'root', '*your default password*'))
{
echo "mysql not connected ".mysql_error();
exit;
}
echo 'great work';
?>
if no error then you will get greatwork as output.
Try it saved my life XD XD
I have a VPS(VestaCP) with a WordPress installation, and the domain is no longer available. I have set up a temporary URL Using the following instructions: Link
I now have an issue establishing connection.
I've went into the wp-config.php and added the following lines thinking it would solve my issue... But it didn't
// Add these lines to wp-config.php:
define('WP_SITEURL', 'http://*tempurlhere*-com.alpha.*myurl*.com/');
define('WP_HOME', 'http://*tempurlhere*-com.alpha.*myurl*.com/');
Is there something I'm missing? Should I replace the url with the server IP?
The reason for "ERROR ESTABLISHING DATABASE CONNECTION" is the inability of WordPress to reach MySQL or authenticate properly. Check the values of DB_USER,DB_HOST,DB_PASSWORD, and DB_NAME. Fix if needed. Make sure the user exists in MySQL, is allowed to connect from your web host, and has the rights to the database given by DB_NAME. If that does not solve the problem, check if MySQL server up and running. If yes, can it be reached from the web server (e.g. maybe MySQL port is firewalled)?
To check accessibility of the MySQL server from your web host, ssh to the web host, and run:
mysql -u <DB_USER> -p<DB_PASSWORD> -h <DB_HOST> <DB_NAME>
Replacing <var> with the actual values. Note the absence of space between -p and the DB_PASSWORD value.
If the connectivity is confirmed, double-check that you are editing the correct wp-config.php that WordPress is actually using, e.g by adding die("Loading this file now"); at the very top of it, then check if you see that message when you load the site.
If that is indeed the case, verify that the PHP installation includes a functional MySQL driver by writing an small program that will use mysqli_connect() with the relevant credentials and report success or error.
I am trying to connect Power Bi (Desktop version) with my online amazon mysql database. It demands for following information once you try to establish connection
Server: server ip
Database: database name
Username: mysql username
Password: mysql password
First time I received a bit lengthy error, which was because of unavailability of mysql-connector-net-6.6.5.msi. So I followed this link to solve the issue
Microsoft Power BI connect to mysql
After installing mysql-connector I am facing another error.
Whats wrong? One of my mates has successfully connected using the same credentials that I am using.
Okay, I just figured this out for myself. I'm able to connect directly to a MySQL database on port 3306. As I understand, it would be more secure to go through an SSH tunnel, but this doesn't work yet with Power BI.
So here are instructions for connecting directly:
First, let's make sure that everything besides the PowerBI connection is working.
1) Download and install the correct version of the MySQL/Net Connector. Right now, version 6.6.5 is the one that works. But from other forums, and from within PowerBI itself, I linked to other versions that did not work. (You will know it isn't working, because you probably won't be able to even open Get Data/MySQL Database/Connect.)
2) See if you can connect remotely to your database through some well established utility like MySQL workbench. If you can't,
- look at ports on the remote server. Here's a cool utility to check ports&IPs: http://www.yougetsignal.com/tools/open-ports/
- Check the permissions of the DB user. Realize that they may be affiliated with an IP address: 'username'#'ipaddress'. So that user can only connect for a particular IP.
- Check the bind address setting. In newer versions of mariadb, it should probably be commented out. I'm not sure about older version and pure mysql.
- other troubleshooting.
So after that's working, here are the settings which worked for me in MySQL:
go to Get Data/MySQL database/connect
Server: ipaddress:3306 (include ":port#")
Database: dbname
PowerBI interface. Select "Database" instead of "Windows"
Make sure you select Database instead of Windows.
Good luck.
Just a small tip. If you haven't already, restart the machine you just installed the connector on. I had to restart before it started working.
My solution for this was to add the port number to the server name/ip
eg. 192.168.0.1:4664
I'm on a mac server. From my home directory, I can get to mysql on the command line. But apps I install (I've tried phpMyAdmin and then Wordpress) can't connect to mysql#localhost.
Suggestions on troubleshooting the problem?
Also, how can I tell what port mysql is running on?
Try specifying 127.0.0.1:3306 as the host and see if that works...
Edit from comments:
Use netstat -a to check which
port MySQL is listening on.
Check to make sure you have the mysql extension installed.
More information: http://us2.php.net/mysql
Make sure you have explicitly listed localhost when you granted permissions to the user. For example, if you have a database named blog which is accessed by a user named wordpress, you need to create the user with this:
grant all on blog.* to 'wordpress'#'localhost' identified by 'blahblah';
I believe that the mysql command-line utility uses Unix file sockets to connect, which bypasses any hostname or DNS restrictions.